An automatic assembly device and system for excavator motor mounts

Abstract

The present invention relates to an automatic assembly device and system for an excavator motor seat. The automatic assembly device for the motor seat includes a workbench, on which a base plate positioning and clamping device, a center plate bent plate support and limiting device, a center plate clamping device, a bent plate clamping device, and a bent plate change support mechanism are arranged. Through the transformable positioning design, the compatibility of workpiece models and sizes can be made multiple, that is, the versatility of the device is improved, and combined with automatic loading, the degree of automation is high, the welding quality and dimensional consistency are stable, the assembly efficiency is improved, and the equipment utilization rate is high. The automatic assembly device for the motor seat can be applied to the assembly and welding of two or more motor seat models, and is no longer targeted at the assembly of a single model of motor seat. By adjusting the limit and support of each device and switching the assembly program of different models, the assembly and welding of motor seat workpieces of different models can be quickly switched. The automatic assembly device for the motor seat can completely replace manual work in conjunction with the automatic loading device for loading and unloading, realizing unmanned operation.

Description

Technical Field

[0001] The present invention relates to the technical field of excavator motor seat assembly, and more particularly to an automatic excavator motor seat assembly device and system. Background Art

[0002] Excavators are a vital piece of equipment for construction and infrastructure construction, with a wide range of applications. As a core component of the excavator's lower frame, the motor mount plays a crucial role in the excavator's performance, quality, and lifespan. However, welding the motor mount assembly is complex and labor-intensive. Manual assembly often lacks consistent dimensional control, directly impacting product quality. Disqualified dimensions result in product scrapping or manual rework of the dimensionally incorrect part, significantly reducing efficiency. Therefore, ensuring consistent motor mount assembly is crucial. With the continued expansion of infrastructure construction, demand for construction excavators is growing annually. As a key component of the excavator's drive system, the efficiency of its assembly is directly related to the excavator's production capacity and the company's profitability. Currently, most motor mount assembly welding is still performed manually, with a small portion performed manually using crude positioning tooling. This results in unpredictable product quality and low efficiency.

[0003] Specifically, a technical solution in the prior art is: the assembly and welding of the motor seat bottom plate, bent plate, and center plate are completed entirely by manual labor. This solution mainly consists of labor, a work platform, calipers, wrench tools, etc. During assembly, each material needs to be moved to the workbench manually, and the motor seat bottom plate, bent plate, and center plate are clamped by manually operating the clamps, and then manually spot-welded into pieces. This solution is cumbersome to operate, inefficient, and difficult to control due to poor dimensional consistency, which increases labor costs. For example, when encountering large-tonnage excavator motor seat structural parts, manual assembly with the help of tools is impossible, and it is not compatible with positioning of multiple models, and the degree of automation is low. The traditional manual assembly process can no longer meet the requirements.

[0004] The second existing technical solution related to the present invention is: the equipment includes a base, a table, a pad, an arc plate limit pin, an arc plate clamping seat, a reference plate limit block, a base limit block and other components. The equipment is a set of manually assisted clamping devices, which utilizes manual loading and unloading, manually rotates the clamping plate handle to position and clamp the workpiece, and manually completes the welding of the motor seat. Compared with the existing solution one, it simplifies the clamping process of tedious manual operations, has a simple structure, and facilitates the process of manually clamping the workpiece. However, manual assisted loading and unloading is still required, and the handle rotation mechanism is operated to complete the clamping and positioning of the motor seat. The left and right motor seats are not compatible, and the positioning block needs to be replaced. The efficiency is low, the degree of automation is low, and the use of the equipment is relatively limited.

[0005] Therefore, how to provide an automatic assembly device for excavator motor seats with high assembly efficiency and compatibility with positioning of multiple models is a problem that technical personnel in this field urgently need to solve. Summary of the Invention

[0006] To this end, one purpose of the present invention is to provide an automatic assembly device for an excavator motor seat to solve the problems of low efficiency of existing motor seat assembly and incompatibility with positioning of multiple models of workpieces.

[0007] Another object of the present invention is to provide an automatic motor seat assembly system for an excavator, to provide a motor seat assembly system with high automation efficiency, and to further improve the motor seat assembly efficiency.

[0008] The present invention provides an automatic assembly device for an excavator motor seat, comprising:

[0009] A workbench, wherein the workbench is fixed on the foundation, and the top of the workbench forms a work support plane;

[0010] A base plate positioning and clamping device, located at one end of the work support plane and slidably connected to the workbench, can avoid automatic device loading and is used for automatic positioning and clamping of the base plate of the workpiece;

[0011] A center plate and bent plate support and limiting device is fixed in the middle of the work support plane and is used for automatic positioning of the center plate and bent plate of the workpiece;

[0012] A center plate clamping device, wherein a circular hole is reserved in the middle of the work support plane, and the center plate clamping device is retracted through the circular hole and is used to automatically clamp the center plate of the workpiece;

[0013] Bend plate clamping devices, a plurality of said bent plate clamping devices are provided on the working support plane along the outside of the center plate bent plate support and limiting device, for automatic clamping of the bent plate in accordance with the shape; and

[0014] The bent plate shape-changing support mechanism is connected to the working support plane and is located near the bent plate of the workpiece, and supports the bent plates of workpieces of different models during shape-changing.

[0015] Furthermore, the base plate positioning and clamping device includes:

[0016] A movable mounting bracket, wherein the bottom of the movable mounting bracket is slidably connected to the working support plane, a mounting area is formed in the middle of the front end surface thereof and is recessed from front to rear, and a through area is reserved in the middle of the bottom thereof;

[0017] A mounting bracket driving oil cylinder is provided on the working support plane at the rear of the movable mounting bracket, and is used to drive the movable mounting bracket to slide;

[0018] A bottom plate adsorption mechanism is installed in the installation area and is used to adsorb the bottom plane of the bottom plate of the workpiece;

[0019] Left and right clamping mechanisms: a pair of left and right clamping mechanisms are installed on both sides of the bottom plate adsorption mechanism, and are used to clamp the left and right positioning surfaces of the bottom plate of the workpiece from both sides;

[0020] Bottom plate detection switches: a plurality of bottom plate detection switches for detecting whether the bottom plate is in contact with the workpiece are installed at the top of the movable mounting bracket facing the bottom plate of the workpiece;

[0021] The movable mounting bracket is provided with a hydraulic system and a control valve to form automatic clamping control of the base plate.

[0022] Furthermore, the base plate positioning and clamping device further includes a base plate support and lifting device, and the base plate support and lifting device includes:

[0023] A base plate adjustment support mechanism, wherein the base plate adjustment support mechanism is L-shaped, with a vertical section parallel to and slidably connected to the movable mounting bracket, and a horizontal section extending from the rear to the front through a reserved through area at the bottom of the movable mounting bracket. After extending from the rear to the front, the horizontal section is located at the bottom of the base plate adsorption mechanism, and is used to support the bottom of the base plate;

[0024] The adjustment mechanism drives the oil cylinder, and the rear portion of the vertical section of the bottom plate adjustment support mechanism is connected to the driving end of the adjustment mechanism drive oil cylinder through a connecting piece;

[0025] An adjusting mechanism mounting plate, wherein the adjusting mechanism driving cylinder is connected to the adjusting mechanism mounting plate, and the adjusting mechanism mounting plate is connected to the rear end surface of the movable mounting bracket.

[0026] Furthermore, the base plate adjustment support mechanism includes: an L-shaped bracket, the vertical section of the L-shaped bracket is slidably connected to the movable mounting bracket through a slide rail and a slider; and a base plate support roller is installed on the top of its horizontal section to support the bottom of the base plate.

[0027] Furthermore, the bottom plate adsorption mechanism includes:

[0028] an adsorption mechanism mounting plate, the adsorption mechanism mounting plate being fixed to the mounting area and protruding outward, and having an electromagnet mounted thereon via an electromagnet mounting plate;

[0029] Bottom plate limiting block, three bottom plate limiting blocks are installed around the adsorption mechanism mounting plate.

[0030] Furthermore, the center plate bent plate support and limiting device includes:

[0031] A mounting plate, the mounting plate being fixed to the workbench and having a center hole corresponding to the circular hole;

[0032] A central plate support block and a bent plate support block are installed on the mounting plate around the central hole;

[0033] A center plate detection mechanism is provided on the mounting plate near the center hole thereof and between the two sets of center plate support blocks;

[0034] A bent plate proximity switch is fixed on the mounting plate at a position away from the center plate detection mechanism.

[0035] Furthermore, the center plate support block includes a support block, which is installed on the mounting block, and the mounting block is close to the center hole of the mounting plate, and the support block is relatively far away from the center hole of the mounting plate; the support block includes a column that is thin at the top and thick at the bottom, and a wear-resistant block is removable on the top of the column; the bottom side of the column is flattened, and a lateral adjustment gasket can be added between the flattened position and the mounting block to support center plates of different models.

[0036] Furthermore, the center plate clamping device includes

[0037] A center plate clamping mounting plate is fixed to the bottom of the workbench and is located on both sides of the circular hole, and the circular hole corresponds to the center hole of the center plate;

[0038] A lifting cylinder is installed at the bottom of the center plate clamping mounting plate;

[0039] Guide cylinders, a plurality of guide cylinders are mounted on the center plate clamping mounting plate;

[0040] A guide shaft, wherein each guide cylinder is correspondingly installed with a guide shaft;

[0041] A driving cylinder mounting plate is provided with a guide hole, through which the guide shaft passes; a pressure claw driving cylinder and a pressure claw lifting mechanism are sequentially mounted upward on the driving cylinder mounting plate;

[0042] The lifting oil cylinder drives the driving cylinder mounting plate, the pressure claw driving cylinder and the pressure claw mechanism thereon to move up and down, and extend from or retract from the center hole of the center plate.

[0043] Furthermore, the bending plate changing support mechanism is divided into four groups, each group including:

[0044] A bending plate driving cylinder, wherein the bending plate driving cylinder is mounted on the workbench through a cylinder mounting plate;

[0045] A bending plate adjusting pad, wherein the bending plate adjusting pad slides on the guide rail mounting plate, and the guide rail mounting plate and the cylinder mounting plate are arranged opposite to each other, and the bending plate adjusting pad is connected to the driving end of the bending plate driving cylinder;

[0046] A bend plate detection switch is installed on the side of the guide rail mounting plate, and its upper surface is lower than the support surface of the bend plate adjustment pad.

[0047] It can be seen from the above technical solutions that, compared with the prior art, the present invention provides an automatic assembly device for an excavator motor seat, which has the following beneficial effects compared with the prior art 1 and the prior art 2:

[0048] (1) The motor seat automatic assembly device includes a workbench, on which a base plate positioning and clamping device, a center plate bending plate support and limiting device, a center plate clamping device, a bending plate clamping device and a bending plate change support mechanism are arranged. Through the transformable positioning design, the workpiece model and size compatibility can be made more compatible, that is, the versatility of the device is improved, combined with automatic loading, the degree of automation is high, the welding quality and dimensional consistency are stable, the assembly efficiency is improved, and the equipment utilization rate is high.

[0049] (2) The motor mount automatic assembly device can be used for welding two or more motor mount models, not just for welding a single motor mount model. By adjusting the limits and supports of each device and switching the assembly program for different models, different motor mount workpieces can be quickly switched for welding.

[0050] (3) The motor seat automatic assembly device cooperates with the automatic loading device to completely replace manual work and realize unmanned operation.

[0051] The present invention provides an automatic assembly system for an excavator motor seat, comprising:

[0052] A handling robot, wherein a material support area and a finished product area are arranged on both sides of the handling robot;

[0053] The automatic pairing device as described in any one of the above items is located at the far end of the base of the transport robot;

[0054] A welding robot, the welding robot being arranged close to the automatic assembly device;

[0055] A control system electrically connected to the handling robot, the welding robot, and the automatic assembly device;

[0056] A hydraulic system is hydraulically connected to the automatic pairing device.

[0057] The present invention discloses an automatic assembly system for excavator motor mounts. This system utilizes a modular design, allowing for customized assembly based on demand. Combined with information exchange between welding and handling robots for automatic loading and unloading, it can be integrated into a production line for automated mass production of motor mounts, thereby improving the efficiency of motor mount assembly. This invention overcomes the bottlenecks of manual assembly and partially manual assembly tooling. The system automatically controls and welds the motor mounts. This system will become a key component in motor mount production, offering not only automatic clamping and positioning capabilities but also flexible production capabilities compatible with a variety of product models. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0059] Figure 1 The accompanying drawing is a schematic structural diagram of an automatic assembly device for an excavator motor seat provided by the present invention;

[0060] Figure 2 The accompanying drawing is an exploded view of an automatic assembly device for an excavator motor seat provided by the present invention;

[0061] Figure 3 and Figure 4 The accompanying drawing shows a perspective view of the base plate positioning clamping device;

[0062] Figure 5 and Figure 6 The accompanying drawing shows a schematic structural diagram of a movable mounting bracket;

[0063] Figure 7 The accompanying drawings show a schematic structural diagram of the left and right clamping mechanisms;

[0064] Figure 8 The accompanying drawing shows an assembly diagram of the base plate adjustment support mechanism;

[0065] Figure 9 The accompanying drawing shows an exploded view of the base plate adjustment support mechanism;

[0066] Figure 10 The accompanying drawing shows a schematic structural diagram of the bottom plate adsorption mechanism;

[0067] Figure 11 The accompanying drawing shows a schematic structural diagram of the center plate bent plate support and limit device;

[0068] Figure 12 The accompanying drawings show an exploded view of the support block and the mounting block, etc.;

[0069] Figure 13 The accompanying drawing shows an exploded view of the center plate detection mechanism;

[0070] Figure 14 The accompanying drawing shows an exploded view of the center plate clamping device;

[0071] Figure 15 The accompanying drawing shows a schematic structural diagram of a bent plate clamping device;

[0072] Figure 16 The accompanying drawing shows a schematic structural diagram of four sets of bending plate shape-changing support mechanisms;

[0073] Figure 17 The accompanying drawings show an exploded view of a set of bending plate change support mechanisms;

[0074] Figure 18 The accompanying drawings show a schematic structural diagram of a workbench;

[0075] Figure 19 The accompanying drawing shows a schematic structural diagram of an automatic motor mount assembly system for excavators. DETAILED DESCRIPTION

[0076] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0077] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0078] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0079] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0080] Due to the continuous optimization of product processes and different models brought about by the development trend of excavators, the types and production capacity of motor seats are constantly increasing. At present, the welding of motor seats is still done manually and clamped manually, with a low degree of automation, and uncontrollable efficiency and quality. The existing assembly tooling can generally only achieve assembly welding of a single model, that is, the manual assisted tooling has a single function during assembly welding, cumbersome operation, and poor compatibility.

[0081] In view of this, the embodiment of the present invention discloses an automatic assembly device for an excavator motor seat, see the attached Figure 1 and 2 The present invention incorporates multiple hydraulic positioning and clamping devices to automatically clamp and position the motor base plate G1, bent plate G3, and center plate G2. This allows for automated clamping of the motor base assembly, ensuring dimensional stability. The system can be used with automated devices (such as robots) for automatic loading and unloading, achieving unmanned operation and significantly improving the quality and efficiency of motor base assembly welding.

[0082] Specifically comprising: a workbench 6, the workbench 6 is fixed on the foundation, and the top thereof forms an operation support plane;

[0083] The bottom plate positioning and clamping device 1 is located at one end of the work support plane and is slidably connected to the workbench 6 to avoid the automatic device from loading and is used for automatic positioning and clamping of the bottom plate G1 of the workpiece;

[0084] The center plate bending plate support and limiting device 2 is fixed in the middle of the work support plane, which is used for automatic limiting of the center plate G2 and the bending plate G3 of the workpiece;

[0085] A center plate clamping device 3, wherein a circular hole is reserved in the middle of the work support plane, and the center plate clamping device 3 is retracted through the circular hole and is used to automatically clamp the center plate G2 of the workpiece;

[0086] Bend plate clamping device 4, a plurality of said bent plate clamping devices 4 are provided on the working support plane along the outside of said center plate bent plate support and limiting device 2, for automatically clamping the bent plate G3 in accordance with the shape; and

[0087] The bent plate shape-changing support mechanism 5 is connected to the working support plane and is located near the bent plate G3 of the workpiece. When changing shapes, it supports the bent plate G3 of workpieces of different models.

[0088] Thus, the assembly device provided by the present invention can be flexibly used for welding motor mounts by changing various devices and mechanisms, meeting the needs of assembling various motor mount models. This eliminates the tedious manual operation of replacing parts and greatly improves equipment utilization. Automatic loading and unloading can be used to improve the degree of automation while ensuring dimensional consistency, assembly production efficiency, and welding quality.

[0089] See attached Figure 3-6 In an embodiment of the present invention, the base plate positioning and clamping device is used as a mechanical device to achieve base plate positioning during the motor base assembly process. It is compatible with various motor bases of different sizes and has the function of automatically clamping the left and right base plates of each size of motor base. The base plate positioning and clamping device 1 includes:

[0090] A movable mounting bracket 1-1, wherein the bottom of the movable mounting bracket 1-1 is slidably connected to the working support plane, a mounting area is formed in the middle of its front end surface and is recessed from front to back, and a through area is reserved in the middle of its bottom;

[0091] The mounting bracket driving cylinder 1-6 is provided on the working support plane at the rear of the movable mounting bracket 1-1 and is used to drive the movable mounting bracket 1-1 to slide;

[0092] Bottom plate adsorption mechanism 1-4, the bottom plate adsorption mechanism 1-4 is installed in the installation area, and is used to adsorb the bottom plane of the bottom plate G1 of the workpiece;

[0093] Left and right clamping mechanisms 1-2: A pair of left and right clamping mechanisms 1-2 are installed on both sides of the bottom plate adsorption mechanism 1-4, and are used to clamp the left and right positioning surfaces of the bottom plate G1 of the workpiece from both sides;

[0094] Bottom plate detection switches 1-5: A plurality of bottom plate detection switches 1-5 for detecting whether the bottom plate is fitted are installed at the top of the movable mounting bracket 1-1 facing the bottom plate G1 of the workpiece;

[0095] Thus, the bottom plane of the bottom plate G1 of the workpiece is adsorbed by the bottom plate adsorption mechanism 1-4, and a pair of left and right clamping mechanisms 1-2 clamp the left and right positioning surfaces of the bottom plate G1 of the workpiece from both sides, thereby realizing the positioning and clamping of different types of bottom plates G1. At the same time, the bottom plate detection switch 1-5 is used to detect whether it is in place; the movable mounting bracket 1-1 has a hydraulic system and a control valve to form automatic clamping control of the bottom plate G1.

[0096] See attached Figure 7A structural schematic diagram of a left and right clamping mechanism 1-2 is provided. Two sets of left and right clamping mechanisms 1-2 are respectively installed on both sides of a movable mounting bracket 1-1. Each of the left and right clamping mechanisms 1-2 consists of a servo electric cylinder 1-2-1, an L-shaped electric cylinder mounting plate 1-2-2, a clamping guide shaft 1-2-3, a guide sleeve 1-2-4, an adapter 1-2-5, a connecting plate 1-2-6, an adjusting gasket 1-2-7, a base plate clamping block 1-2-8, and a protective cover 1-2-9. The servo electric cylinder 1-2-1 can control its stroke according to a program. The front base plate clamping block 1-2-8 is pushed to different positions through the guide shaft, guide sleeve, adapter, and connecting plate. This is used for positioning the left and right sides of the base plates of different models of motor bases.

[0097] More advantageously, see the attached Figure 8 and 9 The bottom plate positioning and clamping device 1 also includes a bottom plate support and lifting device, and the bottom plate support and lifting device includes:

[0098] The bottom plate adjustment support mechanism 1-3 is L-shaped, with a vertical section parallel to and slidably connected to the movable mounting bracket 1-1, and a horizontal section extending from the rear to the front through a reserved through area at the bottom of the movable mounting bracket 1-1. After extending from the rear to the front, the horizontal section is located at the bottom of the bottom plate adsorption mechanism 1-4, and is used to support the bottom of the bottom plate G1.

[0099] The adjustment mechanism drives the oil cylinder 1-8, and the rear portion of the vertical section of the bottom plate adjustment support mechanism 1-3 is connected to the driving end of the adjustment mechanism drive oil cylinder 1-8 through a connecting piece;

[0100] The adjusting mechanism mounting plate 1-7, the adjusting mechanism driving cylinder 1-8 is connected to the adjusting mechanism mounting plate 1-7, and the adjusting mechanism mounting plate 1-7 is connected to the rear end face of the movable mounting bracket 1-1.

[0101] Specifically, see the attached Figure 9 The base plate adjustment support mechanism 1-3 includes: an L-shaped bracket 1-3-1, the vertical section of the L-shaped bracket 1-3-1 is slidably connected to the movable mounting bracket 1-1 through a slide rail 1-3-3 and a slider; a base plate support roller 1-3-4 is installed on the top of its horizontal section to support the bottom of the base plate G1.

[0102] The entire baseplate positioning and clamping device is mounted on a workbench via guide rails and can slide back and forth. The left and right clamping mechanisms 1-2 and baseplate suction mechanism 1-4 are mounted on either side and in the center of a movable mounting bracket 1-1, respectively, to suction the motor baseplate and position it left and right. The baseplate adjustment support mechanism 1-3, mounting bracket drive cylinder 1-6, adjustment mechanism mounting plate 1-7, and adjustment mechanism drive cylinder 1-8 are mounted on the rear side of the movable mounting bracket 1-1. The baseplate support mechanism 1-3 supports the bottom of the baseplate. A baseplate detection switch 1-5, mounted on top of the movable mounting bracket 1-1, detects whether the baseplate is in place and transmits a signal for the next action. The baseplate detection switch 1-5 can be a camera.

[0103] The base plate adjustment support mechanism 1-3 also includes: an upper limit block 1-3-2, a roller mounting plate 1-3-5, a front limit block 1-3-6, an air nozzle 1-3-7, a bottom limit block 1-3-8, and a bottom roller mounting plate 1-3-9; the upper limit block 1-3-2 is installed on the upper rear of the movable mounting bracket 1-1, and is used to limit the L-shaped bracket 1-3-1 when it moves upward under the action of the adjustment mechanism driving the oil cylinder 1-8; the roller mounting plate 1-3-5 is installed at the bottom of the L-shaped bracket 1-3-1, and serves as a connecting plate for installing the base plate support roller 1-3-4; the front limit block 1-3-6 is installed on the working surface of the workbench, located on the front side of the base plate positioning clamping device 1, and is used to fix the base plate. The front end of the positioning clamping device 1 is limited when it moves forward to clamp; the air nozzle 1-3-7 is installed on the working surface of the workbench, and the air outlet faces forward to clean the welding slag and dust on the surface of the motor seat workbench; the bottom limit block 1-3-8 is installed on the working surface of the workbench, and is used to limit the L-shaped bracket 1-3-1 when it moves downward under the action of the adjustment mechanism driving the cylinder 1-8; the bottom roller mounting plate 1-3-9 is installed on the working surface of the workbench, located on the lower side of the L-shaped bracket 1-3-1, and plays a certain supporting role for the base plate positioning clamping device 1; the adjusting cylinder mounting plate 1-7, the upper limit block 1-3-2, the guide rail 1-3-3, and the slider are installed at the corresponding positions of the movable mounting bracket 1-1. Specific actions: The robot grabs the motor base plate and places the bottom side of the base plate on the base plate support roller 1-3-4. The base plate is adsorbed by the base plate adsorption mechanism 1-4. According to the position of the motor base plate of different models, the entire base plate adjustment support mechanism 1-3 is lifted to the required position through the guide slider 1-3-3 under the drive of the adjustment mechanism driving cylinder 1-8, completing the upper and lower size positioning of different models of motor base plates.

[0104] See attached Figure 10 , the bottom plate adsorption mechanism 1-4 includes:

[0105] Adsorption mechanism mounting plate 1-4-3, the adsorption mechanism mounting plate 1-4-3 may be two, fixed in parallel to the mounting area and protruding outward, and the electromagnet 1-4-5 is mounted thereon via the electromagnet mounting plate 1-4-1;

[0106] Bottom plate limit block 1-4-2, three bottom plate limit blocks 1-4-2 are installed around the adsorption mechanism mounting plate 1-4-3.

[0107] It also includes a sliding shaft 1-4-4 and a guide sleeve 1-4-6, wherein the sliding shaft 1-4-4 is installed in the middle position of the two adsorption mechanism mounting plates 1-4-3, and slides relative to the guide sleeve 1-4-6. When the electromagnet 1-4-5 adsorbs and clamps the base plate G1, the hard friction between the surfaces is converted into sliding friction between the sliding shaft 1-4-4 and the guide sleeve 1-4-6; wherein the guide sleeve 1-4-6 is installed at the front end of the electromagnet mounting plate 1-4-1, and slides relative to the sliding shaft 1-4-4; the entire mechanism is fixed to the front side of the movable mounting bracket 1-1 through the adsorption mechanism mounting plate 1-4-3. After the robot places the motor seat base plate in place, the electromagnet 1-4-5 is energized to suck the base plate against the end face of the base plate limit block 1-4-2 to prevent the base plate from tipping over and sliding.

[0108] The specific operation of the entire base plate positioning and clamping device: When the robot grabs the base plate for loading, the entire base plate positioning and clamping system retreats under the action of the drive cylinder 1-6, making room for the robot to load the material. The bottom surface of the motor base plate is placed against the base plate adsorption mechanism 1-4, and the side is placed on the base plate support mechanism 1-3. When the base plate detection switch 1-5 detects the presence of material, the electromagnet of the base plate adsorption mechanism 1-4 activates the base plate adsorption. The servo cylinders of the left and right clamping mechanisms 1-2 are activated to position different types of motor base base plates to the corresponding positions, completing the positioning of the entire base plate. After the bent plate and center plate are loaded, the entire base plate positioning and clamping system moves forward under the action of the mounting bracket drive cylinder 1-6 to clamp the entire motor base workpiece.

[0109] When replacing different models, according to the position of the motor base plate of different models, the entire base plate adjustment support mechanism 1-3 is lifted to the required position through the guide rail 1-3-3 and the slider under the drive of the adjustment mechanism driving the oil cylinder 1-8, so as to complete the upper and lower size positioning of the motor base plates of different models; the servo electric cylinder 1-2-1 can control its stroke according to the program, and push the front end base plate clamping block 1-2-8 to different positions through the guide shaft, guide sleeve, adapter and connecting plate, which is used for left and right side positioning of the motor base plates of different models to complete the model change and realize the assembly welding of motor bases of different models. The base plate adjustment support mechanism 1-3 is provided with a braking device, which adopts the oil cylinder limit block for positioning and the braking device when loading to ensure the accuracy of the loading position and the stability of the overall equipment.

[0110] See attached Figure 11 , the center plate bent plate support and limiting device 2 includes:

[0111] A mounting plate 2-6, the mounting plate 2-6 being fixed on the workbench 6 and having a center hole corresponding to the circular hole;

[0112] A central plate support block and a bent plate support block are installed on the mounting plate 2-6 around the central hole;

[0113] A center plate detection mechanism 2-8 is provided on the mounting plate 2-6 near the center hole thereof and between the two sets of center plate support blocks;

[0114] The bent plate proximity switch 2-4 is fixed on the mounting plate 2-6 at a position away from the center plate detection mechanism 2-8.

[0115] The support blocks in the center plate bend support and limiter device consist of center plate support block 2-1, 2-2 bend plate support block 1, 2-3 center plate support module mounting block, 2-5 bend plate support block 2, and 2-7 different types of bend plate limiters. Each support block is mounted on a mounting plate, which is then bolted to the work platform.

[0116] See attached Figure 12 The center plate support block includes a support block 2-1, which is installed on the mounting block 2-3, and the mounting block 2-3 is close to the center hole of the mounting plate 2-6, and the support block 2-1 is relatively far away from the center hole of the mounting plate 2-6; the support block 2-1 includes a column 2-1-1 that is thin at the top and thick at the bottom, and a wear-resistant block 2-1-3 is removable on the top of the column 2-1-1; the bottom side of the column 2-1-1 is flattened, and a lateral adjustment gasket 2-1-5 can be added between the flattened position and the mounting block 2-3 to support different models of center plates G2.

[0117] The center plate support block 2-1 is installed on the mounting block 2-3. The lateral adjustment gasket 2-1-5 can be added during the debugging process to adjust the position of the support block to achieve the stability of the center plate and the bent plate positioning; the column 2-1-1 has a tapered structure that is thin at the top and thick at the bottom, which plays a guiding role when the robot places the motor seat bent plate from top to bottom, thereby improving the stability of the robot's automatic assembly; different types of bent plate limit blocks 2-7 are installed in corresponding positions according to the sizes of different types of motor seat bent plates to achieve compatibility with bent plates of different models and sizes; the wear-resistant block 2-1-3 is made of detachable quenched wear-resistant material and is installed on the column 2-1-1 by fixing screws 2-1-4. The support positioning function of different types of center plates can be achieved by cumulatively adjusting the gaskets 2-1-2.

[0118] See attached Figure 13 , the center plate detection mechanism 2-8 is composed of a mounting base 2-8-1, a detection switch fixing block 2-8-2, a floating shaft 2-8-3, a spring 2-8-4, an end floating block 2-8-5, and a detection proximity switch 2-8-6. The specific action is: the diameter of the floating shaft 2-8-3 is thick at the top and thin at the bottom, and the thin end passes through the spring 2-8-4 and is mounted on the upper end of the detection switch fixing block 2-8-2 and can slide in the hole; the lower end of the floating shaft 2-8-3 locks the end floating block 2-8-5 to prevent the floating shaft 2-8-3 from popping out under the action of the spring force; when the center plate presses down the floating shaft 2-8-3 and compresses the spring at the same time, the floating shaft drives the end floating block 2-8-5 to move downward, and when the bottom of the end floating block is close to the detection switch, the detection proximity switch is triggered to transmit a signal to detect the presence or absence of the workpiece. The detection proximity switch is placed on the lower side of the detection switch fixing block 2-8-2, which fully avoids the damage to the detection equipment due to the high welding temperature.

[0119] In another embodiment of the present invention, see the attached Figure 14 The center plate clamping device 3 may include a lifting cylinder 3-1, a center plate clamping mounting plate 3-2, a guide sleeve 3-3, a guide shaft 3-4, a driving cylinder mounting plate 3-5, a pressure claw driving cylinder 3-6, a mounting flange 3-7, a pressure claw mounting block 3-8, 3-9 connecting the hinge 1, pressure claws 3-10, 3-11 connecting the hinge 2, a hinge fixing seat 3-12, and a side guard plate 3-13; the lifting cylinder 3-1 and the guide sleeve 3-3 are installed on the center plate clamping mounting plate 3-2; the guide shaft 3-4 passes through the guide sleeve 3-3 and is connected to the driving cylinder mounting plate 3- 5; the cylinder rod of the lifting cylinder 3-1 drives the cylinder mounting plate 3-5, the pressure claw driving cylinder 3-6 and the pressure claw mechanism to rise and fall, and extend and retract from the middle hole of the center plate; the pressure claw 3-10 is installed on the mounting flange 3-7 and the pressure claw mounting block 3-8 through a connecting hinge, and the three pressure claws are opened by controlling the pressure claw driving cylinder 3-6, and the center plate is clamped under the action of the retraction of the lifting cylinder 3-1; the positioning and clamping of the entire device does not require manual participation, which greatly improves the automation rate and greatly ensures the accuracy of the loading position and the stability of the overall equipment.

[0120] Among them, the center plate clamping mounting plate 3-2 is fixed to the bottom of the workbench 6 and is located on both sides of the circular hole, and the circular hole corresponds to the center hole position of the center plate G2; the lifting cylinder 3-1 is installed on the bottom of the center plate clamping mounting plate 3-2; multiple guide cylinders 3-3 are installed on the center plate clamping mounting plate 3-2; each guide cylinder 3-3 is correspondingly installed with a guide shaft 3-4; a guide hole is provided on the driving cylinder mounting plate 3-5, and the guide shaft 3-4 passes through the guide hole; the driving cylinder mounting plate 3-5 is sequentially installed with a pressure claw driving cylinder 3-6 and a pressure claw lifting mechanism; the lifting cylinder 3-1 drives the driving cylinder mounting plate 3-5, the pressure claw driving cylinder 3-6 and the pressure claw mechanism thereon to rise and fall, and extend or retract from the center hole of the center plate G2.

[0121] See attached Figure 15 The bending plate clamping device 4 may include: a clamping cylinder 4-1, a cylinder mounting plate 4-2, a guide sleeve 4-3, a guide shaft 4-4, a top clamping block 4-5, a side clamping block 4-6, a side cylinder guide shaft 4-7, a side cylinder mounting plate 4-8, a guide shaft shield 4-9, a bottom clamping block 4-10, a bottom guide shaft 4-11, a bottom cylinder mounting plate 4-12, and a cylinder rod 4-13. Specific actions: There are five groups of clamping modules for clamping the bending plate, all of which are installed on the workbench. Each module has a similar structure and is installed on the cylinder mounting plate by driving the cylinder. In order to prevent the cylinder rod from rotating during operation, a guide shaft is added and installed on the clamping block and cooperates with the guide sleeve installed on the cylinder mounting plate to slide back and forth, so that the clamping block installed at the end of the cylinder rod always maintains a state of clamping and exiting. The clamping block at the front end of the cylinder is provided with different clamping blocks according to the characteristics of the bending plate, which clamp at different positions of the bending plate respectively, thereby fixing the bending plate and ensuring the accuracy of the position and size of the bending plate.

[0122] See attached Figure 16 and 17 The bending plate changing support mechanism 5 is composed of four groups, which are supported at different positions on the lower side of the bending plate. Each group includes:

[0123] A bending plate driving cylinder 5-1, wherein the bending plate driving cylinder 5-1 is mounted on a workbench 6 via a cylinder mounting plate 5-4;

[0124] A bending plate adjusting pad 5-5, wherein the bending plate adjusting pad 5-5 slides on the guide rail mounting plate 5-7, and the guide rail mounting plate 5-7 is arranged opposite to the cylinder mounting plate 5-4, and the bending plate adjusting pad 5-5 is connected to the driving end of the bending plate driving cylinder 5-1;

[0125] The bending plate detection switch 5-9 is installed on the side of the guide rail mounting plate 5-7, and its upper surface is lower than the supporting surface of the bending plate adjustment pad 5-5 to prevent collision when the bending plate G3 is loaded.

[0126] Specifically, each bending plate changing support mechanism includes a cylinder 5-1, a cylinder rod 5-2, a connecting block 5-3, a cylinder mounting plate 5-4, a bending plate adjustment pad 5-5, a guide rail slider 5-6, a guide rail mounting plate 5-7, a guide rail cover 5-8, a bending plate detection switch 5-9, and a cylinder cover 5-10. The cylinder is mounted on the workbench through the cylinder mounting plate 5-4; the guide rail slider is mounted on the workbench through the guide rail mounting plate; the bending plate adjustment pad is mounted together with the slider in the guide rail slider; wherein the cylinder is connected to the bending plate adjustment pad through the cylinder rod and the connecting block, and the cylinder drives the bending plate adjustment pad to move back and forth on the guide rail of the guide rail slider to a specified position, thereby realizing the support function of different types of bending plates. The bending plate detection switch is used to detect whether the bending plate is in place. The existing detection switch can be used. If it is in place, the signal is triggered, otherwise it is not triggered. The signal feedback control system performs the next action to complete the workpiece clamping and positioning.

[0127] See attached Figure 18 The workbench 6 of the present invention is a set of mechanisms for installing positioning structural parts and control valves, which at least includes a workbench body 6-1, a cylinder control valve group 6-2, a pneumatic valve and a triplet 6-3, an adjusting bolt 6-4, an adjusting pad 6-5, and a chemical bolt 6-6. The adjustment pad 6-5 is fixed to the foundation by chemical bolts, and the entire platform is leveled according to the adjustment bolts 6-4, providing safe and reliable protection for the positioning system; the cylinder control valve group 6-2, pneumatic valve and triplet 6-3 are installed on the side of the workbench, which provides convenience for wiring and piping, and reduces costs to a certain extent; the cylinder control valve group 6-2 is used to connect each cylinder to the valve group through an oil pipe, and the valve group is equipped with a signal line for each cylinder control valve to be connected to the control system to achieve precise control of each cylinder; the pneumatic valve and triplet 6-3 connect the cylinder in the bending plate changing support mechanism 5 and the pressure claw drive cylinder 3-6 in the center plate clamping device to the pneumatic control valve through the air pipe, and the cylinder action is controlled by the signal of the control valve to achieve support for the bending plate and clamping of the center plate.

[0128] The workbench is installed and fixed on the foundation, and the table is leveled and fixed by leveling bolts; the bottom plate positioning clamping device is installed on the workbench in the form of a guide rail slider and slides in the front and back directions. When the automatic device (which can be a robot) loads the workpiece bottom plate, the bottom plate positioning system slides to the end, thereby making room for the robot to load the material; the center plate bending plate positioning device structure is fixed to the middle position of the workbench through the device installation bottom plate, which plays a supporting and limiting role for the center plate and the bending plate; the lifting system of the center plate clamping claw is installed from the lower side of the work platform, and its claw is installed from the process round hole on the workbench The lifting and retraction in the middle do not interfere with the robot's grasping of the workpiece and can also realize the clamping and positioning of the center plate; the bending plate clamping device is fixed to the workbench through the cylinder mounting plate, which is distributed around the motor seat bending plate to realize clamping of different positions of the motor seat bending plate; the bending plate change support mechanism is fixed to the workbench through the cylinder (using the pneumatic switching mechanism to realize the sharing of a set of left and right motor seats of the same model, which can be compatible with the welding of multiple models of motor seats, avoiding the tedious operation of manual replacement of accessories;) The mounting plate is distributed around the motor seat bending plate and supports the different models of motor seat bending plates during the change of models.

[0129] Specific actions: The workbench is installed and fixed on the foundation, and the table top is leveled and fixed by leveling bolts; the base plate positioning clamping device is installed on the work platform through the guide rail slider and can slide back and forth. The base plate positioning clamping device is driven by the oil cylinder to slide backward to the end on the guide rail of the platform to make room for the robot to load materials. The robot grabs the motor seat base plate and places the bottom surface of the base plate against the base plate adsorption mechanism 1-4, and the side against the base plate adjustment support mechanism 1-3. The base plate detection switch 1-5 detects the base plate and controls the base plate adsorption mechanism 1-4 electromagnet through signal transmission to generate magnetism for base plate adsorption. The servo electric cylinders of the left and right clamping mechanisms 1-2 on both sides realize the positioning of the base plate. At this time, the base plate positioning system will move forward after the center plate is loaded; then the robot grabs the motor seat bent plate and places it directly on the center plate and bent plate On the support limit block of the support limit device 2, the cylinders on both sides of the bent plate clamp the bent plate after the center plate is loaded; then the robot grabs the center plate and places it on the center plate bent plate support limit device 2 on the inside of the bent plate. At this time, the cylinders on both sides of the bent plate clamp the bent plate first, and the base plate positioning system 1 slides forward with the base plate to fit the bottom of the bent plate under the drive of the cylinder. After that, the center plate clamping device 3 is driven by the lifting cylinder 3-1 to extend the entire claw mechanism from the middle hole of the center plate, and then the claw is opened by controlling the pressure claw drive cylinder 3-6, and the center plate is clamped under the action of the retraction of the lifting cylinder 3-1; the entire motor seat is spliced and positioned, and the welding robot welding system is cooperated to weld the corresponding positions of each joint of the motor seat base plate, bent plate and center plate to realize the assembly of the finished product of the motor seat.

[0130] The above-mentioned robots replace manual loading and unloading and welding processes, and the tooling automatically clamps and positions, which greatly saves worker costs, labor intensity and welding time. It is compatible with the assembly and splicing of motor seats of various models of left and right parts, has high dimensional stability, and improves welding quality and welding efficiency.

[0131] The present invention also provides an automatic assembly system for excavator motor mounts, see the attached Figure 19 , including: a handling robot S1, with a material support area S4 and a finished product area S5 respectively arranged on both sides of the handling robot S1; an automatic assembling device S3 as described in any of the above embodiments, which is located at the far end of the base of the handling robot S1; a welding robot S2, which is arranged close to the automatic assembling device S3; a control system S6, which is electrically connected to the handling robot S1, the welding robot S2 and the automatic assembling device S3; and a hydraulic system, which is hydraulically connected to the automatic assembling device S3.

[0132] Specifically, the automatic assembly process of the motor seat mainly involves the handling robot automatically grabbing the base plate and placing it on the base plate positioning and clamping device, then grabbing the bent plate and placing it on the bent plate positioning and clamping device, and finally grabbing the center plate and placing it on the center plate positioning and clamping device. The control system transmits a signal to the hydraulic system to drive the cylinder on the tooling for automatic clamping and positioning. The welding robot carries the welding gun to assemble and weld the motor seat. Finally, the handling robot transports the welded motor seat workpiece to the finished product area, completing the automatic assembly and loading and unloading of the entire system.

[0133] Detailed workflow:

[0134] The base plate positioning and clamping device 1 slides backward to the end on the guide rail of the workbench under the action of the mounting bracket driving cylinder 1-6, making room for the robot to load materials. The robot grabs the motor seat base plate and places the bottom surface of the base plate against the base plate adsorption mechanism 1-4. The bottom side surface of the base plate rests on the base plate support roller 1-3-4 of the base plate adjustment support mechanism 1-3. The base plate detection switch 1-5 detects the base plate and controls the electromagnet 1-4-5 in the base plate adsorption mechanism 1-4 through signal transmission to generate magnetism and adsorb the base plate. The servo electric cylinder 1-2-1 of the left and right clamping mechanisms 1-2 on both sides controls its stroke according to the program, moves the base plate clamping block 1-2-8 forward to clamp the left and right sides of the base plate, and realizes the base plate. The plate is positioned and clamped. At this time, the base plate positioning and clamping device 1 remains in a state and moves forward after the loading of the center plate of the motor seat is completed; then the robot grabs the motor seat bent plate and places it directly on the center plate and the bent plate support blocks 2-2 and 2-5 of the bent plate support and limiting device 2. The column 2-1-1 has a conical structure with a thin top and a thick bottom. It plays a guiding role when the robot places the motor seat bent plate from top to bottom, and the cylindrical surface of the lower end of the column 2-1-1 plays a role in limiting the inner side of the motor seat bent plate. At this time, the center plate and the bent plate support and limiting device 2 are surrounded on the inside by the motor seat bent plate; then the robot grabs the center plate of the motor seat and places it on the center plate inside the bent plate and the center plate support module 2-1 in the bent plate support and limiting device 2. At this time, the five groups of clamping module cylinders of the bent plate clamping mechanism 4 first clamp the motor seat bent plate; the base plate positioning system 1 slides the base plate forward and fits the bottom of the bent plate under the drive of the mounting bracket driving cylinder 1-6; the center plate clamping device 3 is driven by the lifting cylinder 3-1 to make the entire pressure claw 3-10 extend upward from the middle hole of the motor seat center plate, and then the pressure claw 3-10 is opened by controlling the pressure claw driving cylinder 3-6, and the center plate is clamped under the action of the retraction of the lifting cylinder 3-1; the entire motor seat is spliced and positioned, and the corresponding positions of each joint of the motor seat base plate, bent plate and center plate are welded in cooperation with the welding robot welding system to realize the assembly of the finished motor seat. When the motor seat is unloaded, the pressure claw driving cylinder 3-6 in the center plate clamping device 3 is controlled to move to retract the pressure claw 3-10, and the entire pressure claw 3-10 is driven by the lifting cylinder 3-1 to withdraw downward from the middle hole of the motor seat center plate to prevent interference with the robot grasping the workpiece; the five groups of clamping module cylinders 4-1 of the bending plate clamping mechanism 4 drive the clamping block to retract; the base plate positioning clamping device 1 is again driven by the mounting bracket under the action of the cylinder 1-6, and slides backward to the end on the guide rail of the workbench, and the robot grasping group places the spliced motor seat workpiece on the finished product pallet to complete unloading.

[0135] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0136] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An automatic assembly device for an excavator motor seat, characterized in that: include: A workbench (6), wherein the workbench (6) is fixed on the foundation, and the top of the workbench (6) forms a work support plane; A base plate positioning and clamping device (1), the base plate positioning and clamping device (1) is located at one end of the work support plane and is slidably connected to the workbench (6), can avoid automatic device loading, and is used for automatic positioning and clamping of the base plate (G1) of the workpiece; A center plate bending plate support and limiting device (2) is fixed in the middle of the work support plane and is used for automatically limiting the center plate (G2) and the bending plate (G3) of the workpiece; A center plate clamping device (3), wherein a circular hole is reserved in the middle of the work support plane, and the center plate clamping device (3) is extended and retracted through the circular hole and is used to automatically clamp the center plate (G2) of the workpiece; A bent plate clamping device (4), wherein a plurality of bent plate clamping devices (4) are provided on the working support plane along the outside of the center plate bent plate support limiting device (2), for automatically clamping the bent plate (G3) in accordance with the shape; as well as A bending plate changing support mechanism (5), the bending plate changing support mechanism (5) is connected to the working support plane and is located near the bending plate (G3) of the workpiece, and supports the bending plate (G3) of different types of workpieces during the changing process; The base plate positioning and clamping device (1) comprises: A movable mounting bracket (1-1), the bottom of the movable mounting bracket (1-1) being slidably connected to the working support plane, a mounting area being formed in the middle of its front end surface and being recessed from front to rear, and a through area being reserved in the middle of its bottom; A mounting bracket driving oil cylinder (1-6) is provided on the working support plane at the rear of the movable mounting bracket (1-1) and is used to drive the movable mounting bracket (1-1) to slide; A bottom plate adsorption mechanism (1-4), wherein the bottom plate adsorption mechanism (1-4) is installed in the installation area and is used for adsorbing the bottom plane of the bottom plate (G1) of the workpiece; Left and right clamping mechanisms (1-2), a pair of left and right clamping mechanisms (1-2) are installed on both sides of the bottom plate adsorption mechanism (1-4) and are used to clamp the left and right positioning surfaces of the bottom plate (G1) of the workpiece from both sides; Bottom plate detection switches (1-5), a plurality of bottom plate detection switches (1-5) for detecting whether the bottom plate is in contact with the workpiece are installed at the top of the movable mounting bracket (1-1) facing the bottom plate (G1); A hydraulic system and a control valve are provided on the movable mounting bracket (1-1), forming automatic clamping control for the base plate (G1).

2. The automatic assembly device for excavator motor mount according to claim 1, characterized in that: The base plate positioning and clamping device (1) further comprises a base plate supporting and lifting device, wherein the base plate supporting and lifting device comprises: A bottom plate adjustment support mechanism (1-3), the bottom plate adjustment support mechanism (1-3) is L-shaped, the vertical section is parallel to and slidably connected to the movable mounting bracket (1-1), and the horizontal section passes through a reserved through area at the bottom of the movable mounting bracket (1-1) from back to front, and is located at the bottom of the bottom plate adsorption mechanism (1-4) after passing through, and is used to support the bottom of the bottom plate (G1); An adjustment mechanism drives an oil cylinder (1-8), and the rear portion of the vertical section of the bottom plate adjustment support mechanism (1-3) is connected to a driving end of the adjustment mechanism drives the oil cylinder (1-8) via a connecting piece; An adjusting mechanism mounting plate (1-7), the adjusting mechanism driving oil cylinder (1-8) is connected to the adjusting mechanism mounting plate (1-7), and the adjusting mechanism mounting plate (1-7) is connected to the rear end surface of the movable mounting bracket (1-1).

3. The automatic assembly device for excavator motor mount according to claim 2, characterized in that: The base plate adjustment support mechanism (1-3) comprises: an L-shaped bracket (1-3-1); the vertical section of the L-shaped bracket (1-3-1) is slidably connected to the movable mounting bracket (1-1) via a slide rail (1-3-3) and a slider; and a base plate support roller (1-3-4) is installed on the top of the horizontal section for supporting the bottom of the base plate (G1).

4. The automatic assembly device for excavator motor mount according to claim 2, characterized in that: The bottom plate adsorption mechanism (1-4) comprises: an adsorption mechanism mounting plate (1-4-3), the adsorption mechanism mounting plate (1-4-3) being fixed to the mounting area and protruding outward, and having an electromagnet (1-4-5) mounted thereon via an electromagnet mounting plate (1-4-1); A bottom plate limiting block (1-4-2), three of which are installed around the adsorption mechanism mounting plate (1-4-3).

5. The automatic assembly device for excavator motor mount according to claim 1, characterized in that: The center plate bent plate support and limiting device (2) comprises: a mounting plate (2-6), the mounting plate (2-6) being fixed on the workbench (6) and having a center hole corresponding to the circular hole; A central plate support block and a bent plate support block, wherein the mounting plate (2-6) is provided with the central plate support block and the bent plate support block around the central hole; A center plate detection mechanism (2-8), the center plate detection mechanism (2-8) is provided on the mounting plate (2-6) near the center hole thereof and between the two groups of center plate support blocks; A bent plate proximity switch (2-4) is fixed on the mounting plate (2-6) at a position away from the center plate detection mechanism (2-8).

6. The automatic assembly device for excavator motor mounts according to claim 5, characterized in that: The center plate support block comprises a support block (2-1), the support block (2-1) is mounted on a mounting block (2-3), and the mounting block (2-3) is close to the center hole of the mounting plate (2-6), and the support block (2-1) is relatively far away from the center hole of the mounting plate (2-6); the support block (2-1) comprises a column (2-1-1) which is thin at the top and thick at the bottom, and a wear-resistant block (2-1-3) is detachably provided on the top of the column (2-1-1); the bottom side of the column (2-1-1) is flattened, and a lateral adjustment gasket (2-1-5) can be added between the flattened position and the mounting block (2-3) for supporting center plates (G2) of different models.

7. The automatic assembly device for excavator motor mount according to claim 5, characterized in that: The center plate clamping device (3) comprises A center plate clamping mounting plate (3-2), wherein the center plate clamping mounting plate (3-2) is fixed to the bottom of the workbench (6) and is located on both sides of the circular hole, and the circular hole corresponds to the position of the center hole of the center plate (G2); A lifting oil cylinder (3-1), the lifting oil cylinder (3-1) being installed at the bottom of the center plate clamping mounting plate (3-2); Guide cylinders (3-3), a plurality of guide cylinders (3-3) are mounted on the center plate clamping mounting plate (3-2); A guide shaft (3-4), wherein each guide cylinder (3-3) is correspondingly installed with one guide shaft (3-4); A driving cylinder mounting plate (3-5) is provided with a guide hole, through which the guide shaft (3-4) passes; a pressure claw driving cylinder (3-6) and a pressure claw lifting mechanism are sequentially mounted upward on the driving cylinder mounting plate (3-5); The lifting oil cylinder (3-1) drives the driving cylinder mounting plate (3-5), the pressure claw driving cylinder (3-6) and the pressure claw mechanism thereon to rise and fall, and to extend or retract from the center hole of the center plate (G2).

8. The automatic assembly device for excavator motor mounts according to claim 5, characterized in that: The bending plate changing support mechanism (5) is divided into four groups, each group including: A bending plate driving cylinder (5-1), wherein the bending plate driving cylinder (5-1) is mounted on a workbench (6) via a cylinder mounting plate (5-4); A bending plate adjusting pad (5-5), wherein the bending plate adjusting pad (5-5) slides on the guide rail mounting plate (5-7), and the guide rail mounting plate (5-7) and the cylinder mounting plate (5-4) are arranged opposite to each other, and the bending plate adjusting pad (5-5) is connected to the driving end of the bending plate driving cylinder (5-1); A bend plate detection switch (5-9) is installed on the side of the guide rail mounting plate (5-7), and its upper surface is lower than the supporting surface of the bend plate adjustment pad (5-5).

9. An automatic assembly system for excavator motor mounts, characterized in that: include: A handling robot (S1), with a material support area (S4) and a finished product area (S5) arranged on both sides of the handling robot (S1) ； The automatic pairing device (S3) according to any one of claims 1 to 8, which is located at the far end of the base of the handling robot (S1); A welding robot (S2), the welding robot (S2) being arranged close to the automatic assembly device (S3); A control system (S6), wherein the control system (S6) is electrically connected to the handling robot (S1), the welding robot (S2) and the automatic assembly device (S3); A hydraulic system is hydraulically connected to the automatic pairing device (S3).

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